Hi @AB1
You must file ITR 2 in this case.
Since you’re a resident in India, your global income is taxable. Hence you need to report your Indian income and Australian income in your ITR.
For the TDS, you can claim the same whiling filing your ITR as it is reflected in your form 26AS.
For the Australian income on which you have paid tax, you can claim the foreign tax credits. To claim foreign tax credits, you must file form 67. Here’s a read on Form 67 : Claiming Foreign Tax Credit - Learn by Quicko for your reference.
Since you also have an Australian bank account, which is a foreign asset, you will have to show the same under Schedule FA.
For any expert assistance with your taxes, you can book a MEET, where a tax expert will help you file your return considering your income situation.